X-ray apparatus



Nov. 15, 1932.

P. F. COLE 1,887,801

X-RAY APPARATUS Filed Oct. 13. 19:51 3 Sheets-Sheet 1 Inventor .Pda/ZT'Ca/e Bypg NOV. 15, 1932. COLE I 1,887,801

X-RAY APPARATUS Filed Oct. 13, 1951 3 Sheets-Shet 2 Inventor Baa/1 60/6Nov. 15, 1932.

Filed Oct. 13, 1951 P. F. COLE X-RAY APPARATUS 5 Sheets-Sheet 3 InventorJP a/E 6 0/6 gwm Patented Nov. 15, 1932 UNITED STATES not 1*. com, orsrnrnorrnrn, mrssouar .3g: arrmrus f V Application filed October13,1931. Serial'li'o. 568,592.

The present invention relates generally to new and useful improvementsin X-ray ap-' paratus and has for itsprimary object to provide, in amanner as hereinafter set forth,

an apparatus of this characterembodymg a novel construction, combinationand arrangement of parts through the medium'of Which the grid may beexpeditiously rotated and tilted as desired for bringing said grld tothe optimum position for'permittmg the vertical or essential rays topass and 'fall upon the plate or film.

Other objects of the invention are to provide means for setting'theX-ray tube at'various angles with relation to the plate or film,

permitting the part of the body being examined to rest parallel with thegrid; and

rotating the grid to the desired angle, permitting the central ray topass through the grld.

In this way the central ray is broughtvto an angle of 90 degrees withthe grid. This result is obtained by the circular mounting of the gridpermitting its rotation. To the best 7 of my knowledge no otherPotter-Bu ky grid has ever before been so arranged as to accomplish theabove named results.

Other objects of the invention are to provide an adjustable gridmounting means which will be simple in construction, strong,

durable, efficient and reliable in use and which may be manufactured atlow cost.

All of the foregoing and still further objects and advantages of theinvention will be come apparent from a study of the followingspecification, taken in connection with the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views, and

wherein Figure 1 is a view in front elevationof an X-ray apparatusembodying a grid mounting in accordance with the present invention.Figure 2 is a view in front elevation of the 5 grid mounting per se. t

Figure 3 is a view in rear QlBV-RtlOIl' show ing the grid and itsmounting. j Figure 4 is a cross sectional view taken substantially onthe line 4-4 of Figure 2. Figure 5 is a detail view in section through't'ric relation to the ring. Circumferentially one ofthe bearingsshowing the trunnionsmounted thereinf c "Referring now to the drawingsin detail,

it will be seen that the-reference numeral '1 designates generally avertically adjustable 65 supporting base from which rises a standard 2having formed integrally with its upper end a yoke 3 Horizontallydisposed, aligned bearings 4are provided: on theends ofthe yoke3. y

The reference numeral 5 designates-a pair of elongated tubular rodshaving trunnions 6 extending inwardly from intermediate portions and journaled in the bearings 4 for sup? porting said tubular'rods forswinging adjustment. Set screws 7 are threaded into the bearings 4 forengagement with the trunnions 6 for securing the rods 5 in adjustedposition. The trunnions 6 are of less length than the bearings 4. Therods 5 are normally disposed at an inclination and the lowerends thereofare connected by a counterweightS; Rods '9 are mounted for slidingadjustment in the upper end portions of the rods 5--and have mountedthereon the arcuate frame '10 upon which a'tube holding unit designatedgenerallyby the reference numeral -11 is mounted forsliding adjustment.A gradu-' ated disk 12 is fixed on the outer end portion of one of thebearings 4 and cooperates with apointer 13 mounted on-the adjacenttubular rod 5 for indicating the positionor'inclination of the tubularrods and consequently indicating the position of the tube holding unit11'.

The reference numeral 14 designates a ring of circular cross sectionhaving extending from diametrically opposite sides thereof the trunnions15 which are journaled in the bearings 4. Thus, the ring 14 is mountedfor swinging adjustment. Set screws 16 are threaded into the'bearings 4for engagement with'the trunnions 15. for securing the ring 14 inadjusted position. A graduated segment 17 is mounted concentrically'onthe upper portion of the ring14. 7 H V The reference numeral 18designates a disk which is mounted for rotation in the ring 14, saiddisk being disposed in spaced, concene spaced pairs of arms 19 radiatefrom the disk 18 and have their free end portions disposed on oppositesides of the ring 14. Pins 20 extend between the pairs of arms 19 andjournaled thereon are the peripherally grooved rollers 21 which travelon theinner periphery of the ring 14. Thus, the disk 18 ismounted forrotation in the ring 14. s r

The disk 18 is provided with a substantially rectangular opening 22.Mounted on the rear 2 side of the disk 18 is a grid 28 which is-securedfor adjustment on the disk by convenerence numeral 24. The grid 23 isdisposed in the rear of the opening 22in the disk 18. A pointer25 ismounted on the disk 18 and 00 operates with the graduated segment 17 forindicating the position of the disk and consequently the grid 23. 7

As best seen in-Figure 4 of the drawings, one of the pins 20 is in theform of a screw which is slidably and rotatably inserted through one ofthe arms 19 and has one end portion threaded through the other arm 19.This pin is-provided with a winged head 26 for actuating the same. Byrotating the winged head 26 in the proper direction this pair of thearms 19 may be drawn toward each other to frictionally clamp the ring 14therebetween for securing the disk 18 carrying the grid 23 in adjustedposition against rotation in the ring 14.

If desired, the disc supporting rollers may be journalled on the-ring14and have rolling contact with'the periphery of the disc- 18.

The dial17 may beplacedon the disc and the indicator 25 mounted on thering 14..

It is believed that the many advantages of an X-ray apparatus inaccordance with the present invention will be readily understood, andalthough the preferred embodiment of the invention is as illustrated anddescribed, it is to be understood thatv changes in the details ofconstruction and in the combination and arrangement of parts may beresorted to which will fall within the scope of the invention asclaimed. 7 V

WVhat is claimed is V v 1. An X-ray apparatus comprising a support, anannular track mounted for swinging adjustmenton the support, anapertured member mountedfor rotary adjustment on the track, and a gridmounted on the member adjacent the aperture therein. 1

2. An X-ray apparatus comprising a support, "an annular track mountedfor swinging adjustmenton the support, an apertured disk mounted forrotary adjustment in the track,a grid mounted on the disk adjacent theaperture therein, and means on the disk engageable with the track forsecuring said disk in adjusted position. 3

3. An X-ray apparatus comprising a support, an, annular track. mountedfor swinglng adjustment on the support, an vapertured disk mounted forrotary adjustment in the track in spaced, concentric relation to saidtrack, a grid mounted on the disks adjacent the aperture therein spacedpairs of arms mounted on the disk and radiating therefrom, pinsextending between the pairs of arms, and rollers journaled on the pinsfor rolling contact with the inner periphery of the track.

4. An X-ray apparatus comprising a support,- an annulartrack mounted forswinga ing adjustment on the support, an apertured tional meansdesignated generally by the-ref disk mounted for rotary adjustment inthe trackinsp'aced, concentric relation thereto,

a; grid mounted on the disk adjacent the aperture therein spaced pairsof "armsmounted on the disk andv extending therefrom on opposite sidesof the track, pins extending be tweenthe pairs o f arms, rollersjournaled on the pins between the arms for rollingcontact with the innerperiphery. of the track for supporting the disk thereon, oneof the pinsbeing slidably and rotatably inserted through an arm ofone of thepairsand having an endportion threaded through the other arm of saidone pair,a head on" the other end of said one pin for actuatingthe same, said onepin constituting' means for drawingsaid one pair of arms toward eachother for frictionally clamping the track therebetween for securing thedisk in adjusted position relative to the track.

5. An X-ray apparatus comprising a sup porting yoke, aligned hearings onthe ends of the supporting yoke, an annular track, trunnions projectingfrom diametricallyopposite sides of the track and journaled in the.bearings for mounting the track for swinging adjustment on the yoke,means for securing the track in adjusted position, an apertureddiskmounted for rotary'adjustment in the track in'spaced concentric relationthereto, pairs of arms mounted on the ing the rods for swingingadjustment on the yoke, a counterweight connecting the rods together atone end, a frame extending between the other ends of the rods, a tubeholding unit operatively mounted on the frame, an annul'artrack,trunnions extending from diametrically opposite sides of the track andjournalled in the bearings'for mounting the track for swingingadjustment on the yoke,

fat

means for securing the track in adjusted position on the yoke, anapertured disk mounted for rotation in the track, means on the diskengageable with the track for securing said disk against rotationrelative to said track, and a grid mounted on one side of the disk andadjacent the aperture therein;

In testimony whereof I 'afiix my signature.

PAUL F. COLE.

